Created by: gongweibao

欢迎您反馈PaddleHub使用问题，非常感谢您对PaddleHub的贡献！ 在留下您的问题时，辛苦您同步提供如下信息：

• 版本、环境信息 1）PaddleHub和PaddlePaddle版本：请提供您的PaddleHub和PaddlePaddle版本号，例如PaddleHub1.7.1，paddlepaddle-gpu-1.8.1.post107. 2）系统环境：请您描述系统类型，例如Linux/Windows/MacOS/，python版本:python3.6
• 复现信息：如为报错，请给出复现环境、复现步骤

96     cls_task.load_checkpoint()
 97     cls_task.save_inference_model("cls_fintune_0")
 98
 99     # Finetune and evaluate by PaddleHub's API
100     # will finish training, evaluation, testing, save model automatically
101     cls_task.finetune_and_eval()
102     cls_task.save_inference_model("cls_fintune_1")

错误：

Traceback (most recent call last):
  File "text_classifier.py", line 97, in <module>
    cls_task.save_inference_model("cls_fintune_0")
  File "/usr/local/lib/python3.6/site-packages/paddlehub/finetune/task/base_task.py", line 865, in save_inference_model
    params_filename=params_filename)
  File "/usr/local/lib/python3.6/site-packages/paddle/fluid/io.py", line 1270, in save_inference_model
    save_persistables(executor, save_dirname, main_program, params_filename)
  File "/usr/local/lib/python3.6/site-packages/paddle/fluid/io.py", line 647, in save_persistables
    filename=filename)
  File "/usr/local/lib/python3.6/site-packages/paddle/fluid/io.py", line 301, in save_vars
    filename=filename)
  File "/usr/local/lib/python3.6/site-packages/paddle/fluid/io.py", line 356, in save_vars
    executor.run(save_program)
  File "/usr/local/lib/python3.6/site-packages/paddle/fluid/executor.py", line 1071, in run
    six.reraise(*sys.exc_info())
  File "/usr/local/lib/python3.6/site-packages/six.py", line 703, in reraise
    raise value
  File "/usr/local/lib/python3.6/site-packages/paddle/fluid/executor.py", line 1066, in run
    return_merged=return_merged)
  File "/usr/local/lib/python3.6/site-packages/paddle/fluid/executor.py", line 1154, in _run_impl
    use_program_cache=use_program_cache)
  File "/usr/local/lib/python3.6/site-packages/paddle/fluid/executor.py", line 1229, in _run_program
    fetch_var_name)
paddle.fluid.core_avx.EnforceNotMet:

--------------------------------------------
C++ Call Stacks (More useful to developers):
--------------------------------------------
0   std::string paddle::platform::GetTraceBackString<std::string const&>(std::string const&, char const*, int)
1   paddle::platform::EnforceNotMet::EnforceNotMet(std::string const&, char const*, int)
2   paddle::framework::OperatorWithKernel::ParseInputDataType(paddle::framework::ExecutionContext const&, std::string const&, paddle::framework::proto::VarType_Type*) const
3   paddle::framework::OperatorWithKernel::IndicateVarDataType(paddle::framework::ExecutionContext const&, std::string const&) const
4   paddle::operators::SaveOp::GetExpectedKernelType(paddle::framework::ExecutionContext const&) const
5   paddle::framework::OperatorWithKernel::ChooseKernel(paddle::framework::RuntimeContext const&, paddle::framework::Scope const&, paddle::platform::Place const&) const
6   paddle::framework::OperatorWithKernel::RunImpl(paddle::framework::Scope const&, paddle::platform::Place const&, paddle::framework::RuntimeContext*) const
7   paddle::framework::OperatorWithKernel::RunImpl(paddle::framework::Scope const&, paddle::platform::Place const&) const
8   paddle::framework::OperatorBase::Run(paddle::framework::Scope const&, paddle::platform::Place const&)
9   paddle::framework::Executor::RunPartialPreparedContext(paddle::framework::ExecutorPrepareContext*, paddle::framework::Scope*, long, long, bool, bool, bool)
10  paddle::framework::Executor::RunPreparedContext(paddle::framework::ExecutorPrepareContext*, paddle::framework::Scope*, bool, bool, bool)
11  paddle::framework::Executor::Run(paddle::framework::ProgramDesc const&, paddle::framework::Scope*, int, bool, bool, std::vector<std::string, std::allocator<std::string> > const&, bool, bool)

------------------------------------------
Python Call Stacks (More useful to users):
------------------------------------------
  File "/usr/local/lib/python3.6/site-packages/paddle/fluid/framework.py", line 2610, in append_op
    attrs=kwargs.get("attrs", None))
  File "/usr/local/lib/python3.6/site-packages/paddle/fluid/io.py", line 327, in save_vars
    attrs={'file_path': os.path.normpath(save_file_path)})
  File "/usr/local/lib/python3.6/site-packages/paddle/fluid/io.py", line 301, in save_vars
    filename=filename)
  File "/usr/local/lib/python3.6/site-packages/paddle/fluid/io.py", line 647, in save_persistables
    filename=filename)
  File "/usr/local/lib/python3.6/site-packages/paddle/fluid/io.py", line 1270, in save_inference_model
    save_persistables(executor, save_dirname, main_program, params_filename)
  File "/usr/local/lib/python3.6/site-packages/paddlehub/finetune/task/base_task.py", line 865, in save_inference_model
    params_filename=params_filename)
  File "text_classifier.py", line 97, in <module>
    cls_task.save_inference_model("cls_fintune_0")

----------------------
Error Message Summary:
----------------------
InvalidArgumentError: The Tensor in the save Op's Input Variable X(cls_out_w) is not initialized.
  [Hint: Expected t->IsInitialized() == true, but received t->IsInitialized():0 != true:1.] at (/paddle/paddle/fluid/framework/operator.cc:1289)
  [operator < save > error]